TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Gwregysau diogelwch a seddi diogel i blant
English: Seat belts and child restraints
Status A
Subject: Transport
Part of speech: Noun, Plural
Definition: Dogfen y Cynulliad 2002
Last updated: 4 June 2004
Welsh: gwregys diogelwch
English: seat belt
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 30 August 2012
Welsh: gwregys glin
English: lap belt
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Context: Termau o’r Memorandwm Esboniadol ar gyfer y Mesur Arfaethedig ynghylch Diogelwch ar Gludiant i Ddysgwyr (Cymru).
Last updated: 8 December 2010
Welsh: gwregys person anabl
English: disabled person’s belt
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Context: Termau o’r Memorandwm Esboniadol ar gyfer y Mesur Arfaethedig ynghylch Diogelwch ar Gludiant i Ddysgwyr (Cymru).
Notes: Gweler yr erthygl ar y Model Cymdeithasol o Anabledd yn yr Arddulliadur. Yn unol â'r Model, mae amhariad ("impairment", a elwid yn "nam" o'r blaen) yn nodwedd ar berson, a all effeithio ar ei ymddangosiad neu ar sut y mae ei gorff neu ei feddwl yn gweithio; caiff pobl anabl (y gellir hefyd cyfeirio atynt fel "pobl anabledig" neu "bobl sy'n cael eu hanablu") eu hanablu gan ffactorau allanol fel yr amgylchedd, polisi neu arferion, neu yn sgil methiant i ddarparu addasiadau ar eu cyfer; ac anabledd yw canlyniad anablu pobl sydd ag amhariadau. 
Last updated: 17 November 2023
Welsh: gwreichlin
English: sparkline
Status C
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Plural: gwreichlinau
Definition: A sparkline is a very small line chart, typically drawn without axes or coordinates. It presents the general shape of the variation (typically over time) in some measurement, such as temperature or stock market price, in a simple and highly condensed way.
Last updated: 20 September 2016
Welsh: gwreiddair
English: root
Status B
Subject: Culture and the arts
Part of speech: Noun, Masculine, Singular
Plural: gwreiddeiriau
Definition: Y ffurf sylfaenol ar air - neu fôn - y gellir ychwanegu terfyniadau, dodiaid ac ati ato, e.e. mae'r gwreiddair 'gwaith' yn rhoi 'gweithio', 'gweithiwr', 'di-waith' inni.
Notes: Term o faes ieithyddiaeth a ddefnyddir mewn deunyddiau sy’n gysylltiedig â CEFR, y Fframwaith Cyfeirio Cyffredin Ewropeaidd ar gyfer Ieithoedd.
Last updated: 2 October 2025
Welsh: gwreiddgnwd
English: root crop
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: gwreiddgnydau
Last updated: 21 July 2025
Welsh: gwreiddgnwd wedi’i hau o dan gnwd arall
English: undersown root crop
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 10 July 2012
Welsh: gwreiddgyff
English: root stock
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Context: Dyma’r gwreiddiau/cyffion yr impir prennau arnyn nhw. Mae 4 math – safonol (standard), lled-safonol (half standard), llwyn (shrub) a phatio – sy’n amrywio yn ôl maint.
Last updated: 24 November 2009
Welsh: gwreiddgyff corachu
English: dwarfing rootstock
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: gwreiddgyffion corachu
Last updated: 16 March 2017
Welsh: Gwreiddiau Gwydn
English: Rooted and Resilient
Status A
Subject: Economic development
Part of speech: Proper noun, Plural
Notes: Dogfen a gyhoeddwyd gan Ganolfan Cydweithredol Cymru gyda chymorth Llywodraeth Cymru.
Last updated: 2 April 2025
Welsh: Gwreiddiau Ifanc
English: Young Roots
Status A
Subject: Culture and the arts
Part of speech: Noun, Plural
Definition: A Heritage Lottery Fund programme.
Last updated: 15 December 2010
Welsh: Gwreiddiau Llafur Cymru
English: Labour Grassroots Wales
Status C
Subject: Personnel
Part of speech: Noun, Plural
Last updated: 14 September 2012
Welsh: â gwreiddiau moel
English: bare root
Status C
Subject: Environment
Part of speech: Adjective
Last updated: 25 November 2014
Welsh: gwreiddiriog
English: burnet saxifrage
Status A
Subject: Plants
Part of speech: Noun, Masculine, Singular
Last updated: 29 February 2012
Welsh: gwreiddlysiau
English: root vegetables
Status B
Subject: Food
Part of speech: Noun, Masculine, Plural
Last updated: 8 March 2012
Welsh: gwreiddwedd
English: rootkit
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 8 April 2013
Welsh: gwres
English: fever
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last updated: 7 June 2007
Welsh: gwres adnewyddadwy
English: renewable heat
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 1 October 2008
Welsh: gwres a gydgynhyrchir
English: cogenerated heat
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Ynni thermol a gynhyrchir ar yr un pryd ac yn yr un broses ag ynni trydanol neu ynni mecanyddol.
Last updated: 5 December 2023
Welsh: gwres a phŵer cyfunedig
English: CHP
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: combined heat and power
Last updated: 19 December 2003
Welsh: gwres a phŵer cyfunedig
English: combined heat and power
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: CHP
Last updated: 19 December 2003
Welsh: gwres canolog
English: central heating
Status C
Subject: Housing
Part of speech: Noun, Masculine, Singular
Last updated: 11 July 2008
Welsh: gwres canolog rhannol
English: partial central heating
Status C
Subject: Housing
Part of speech: Noun, Masculine, Singular
Last updated: 11 July 2008
Welsh: gwres carbon isel
English: low carbon heat
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 10 February 2022
Welsh: gwres eithafol
English: extreme heat
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Yng nghyd-destun y tywydd.
Last updated: 21 July 2022
Welsh: Gwres Llethol
English: Extreme Heat
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Yn ymwneud â'r system Heat-Health Watch.
Last updated: 29 September 2005
Welsh: gwresogi
English: heating
Status B
Subject: Housing
Part of speech: Verb
Notes: Yng nghyd-destun systemau gwres canolog a dŵr domestig.
Last updated: 5 December 2023
Welsh: Gwresogi ac Awyru
English: Heating and Ventilating
Status A
Subject: Education
Part of speech: Verb
Context: Apprenticeship learning pathway.
Last updated: 31 October 2012
Welsh: Gwresogi ac Awyru, Oeri ac Aerdymheru
English: Heating and Ventilating, Refrigeration and Air Conditioning
Status A
Subject: Education
Part of speech: Verb
Context: Apprenticeship learning pathway.
Last updated: 31 October 2012
Welsh: gwresogi ag olew neu nwy
English: oil and gas heating
Status C
Subject: Environment
Part of speech: Verb
Last updated: 8 July 2008
Welsh: gwresogi, awyru ac aerdymheru
English: heating ventilation and air conditioning
Status B
Subject: Environment
Part of speech: Verb
Definition: Defnyddio systemau gwresogi, awyru ac aerdymheru mecanyddol mewn man dan do er mwyn addasu tymheredd a lleithder y lle hwnnw.
Last updated: 7 July 2020
Welsh: gwresogi, awyru ac aerdymheru
English: HVAC
Status B
Subject: Environment
Part of speech: Verb
Notes: Dyma'r acronym Saesneg a ddefnyddir am heating, ventilation and air conditioning.
Last updated: 7 July 2020
Welsh: Gwresogi Domestig
English: Domestic Heating
Status A
Subject: Education
Part of speech: Verb
Context: Apprenticeship learning pathway.
Last updated: 30 October 2012
Welsh: gwresogyddion catalytig
English: catalytic heaters
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 11 July 2008
Welsh: gwresogyddion dŵr solar
English: solar water heaters
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 10 January 2007
Welsh: gwresogyddion stôr
English: storage heaters
Status C
Subject: Housing
Part of speech: Noun, Plural
Last updated: 11 July 2008
Welsh: gwresogyddion symudol LPG
English: LPG portable heaters
Status C
Subject: Housing
Part of speech: Noun, Plural
Last updated: 11 July 2008
Welsh: gwres rheiddiol
English: radiant heating
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 13 December 2010
Welsh: gwrtaith
English: fertiliser
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: organig ac artiffisial
Last updated: 22 September 2004
Welsh: gwrtaith anorganig
English: inorganic fertiliser
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Context: Glastir ACRES
Last updated: 14 July 2010
Welsh: gwrtaith artiffisial
English: bagged fertiliser
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: neu ' gwrtaith sachau'
Last updated: 4 October 2005
Welsh: gwrtaith artiffisial organig
English: bagged organic fertiliser
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 20 January 2006
Welsh: gwrtaith ffosffad a weithgynhyrchwyd
English: manufactured phosphate fertiliser
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: gwrteithiau ffosffad a weithgynhyrchwyd
Last updated: 1 October 2020
Welsh: gwrtaith nitrogen
English: nitrogen fertiliser
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: gwrteithiau nitrogen
Last updated: 1 October 2020
Welsh: gwrtaith nitrogen a weithgynhyrchwyd
English: manufactured nitrogen fertiliser
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: gwrteithiau nitrogen a weithgynhyrchwyd
Last updated: 1 October 2020
Welsh: gwrtaith sachau
English: manufactured fertiliser
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 2 July 2007
Welsh: gwrtharwydd
English: contraindication
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Condition or situation that makes a treatment or procedure inadvisable e.e. “The BNF does not mention allergy to the drug as a contra-indication”.
Last updated: 15 April 2004
Welsh: gwrtharwyddo
English: contraindicate
Status A
Subject: Health
Part of speech: Verb
Last updated: 16 April 2003
Welsh: gwrthasid
English: antacid
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: gwrthasidau
Last updated: 6 November 2019